Proton Radiation Damage Experiment on P-Channel CCD for an X-ray CCD camera onboard the Astro-H satellite
| Autor: | Mori, Koji, Nishioka, Yusuke, Ohura, Satoshi, Koura, Yoshiaki, Yamauchi, Makoto, Nakajima, Hiroshi, Ueda, Shutaro, Kan, Hiroaki, Anabuki, Naohisa, Nagino, Ryo, Hayashida, Kiyoshi, Tsunemi, Hiroshi, Kohmura, Takayoshi, Ikeda, Shoma, Murakami, Hiroshi, Ozaki, Masanobu, Dotani, Tadayasu, Maeda, Yukie, Sagara, Kenshi |
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| Rok vydání: | 2013 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.nima.2013.05.052 |
| Popis: | We report on a proton radiation damage experiment on P-channel CCD newly developed for an X-ray CCD camera onboard the Astro-H satellite. The device was exposed up to 10^9 protons cm^{-2} at 6.7 MeV. The charge transfer inefficiency (CTI) was measured as a function of radiation dose. In comparison with the CTI currently measured in the CCD camera onboard the Suzaku satellite for 6 years, we confirmed that the new type of P-channel CCD is radiation tolerant enough for space use. We also confirmed that a charge-injection technique and lowering the operating temperature efficiently work to reduce the CTI for our device. A comparison with other P-channel CCD experiments is also discussed. Comment: 21 pages, 7 figures, accepted for publication in Nucl. Instr. and Meth. A |
| Databáze: | arXiv |
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